Single mesh narrow bandpass filters from the infrared to the submillimeter region |
| |
| Affiliation: | 1. Department of Electrical and Electronics Engineering, Ariel University, Ariel, 407000, Israel;2. Ariel Photonics Center (APC), Ariel University, Ariel, 407000, Israel;1. School of Optoelectronic Engineering, XiDian University, Xi''an, Shannxi, 710071, China;2. United Microelectronics Center (CUMEC), No.20, Xiyuan South Street, Xiyong Microelectronics Industry Park, Gaoxin District, Chongqing, China;3. Science and Technology on Electromechanical Dynamic Control Laboratory, Xi''an, Shannxi, 710065, China;1. Key Laboratory of Micro-nano Sensing and IoT of Wenzhou, Wenzhou Institute of Hangzhou Dianzi University, Wenzhou, 325038, China;2. Research Center for Photonic Technology, Fujian Provincial Key Laboratory for Advanced Micro-nano Photonics Technology and Devices & Key Laboratory of Information Functional Material for Fujian Higher Education, Quanzhou Normal University, Quanzhou, 362000, China |
| |
| Abstract: | Narrow bandpass filters from i.r. to Submillimeter have been investigated utilizing the bandpass transmission characteristic of an electroformed metal mesh around the wavelength near the grid constant (ɡ). The bandwidth was narrowed by controlling the strip breadth of the mesh. It was found experimentally that the mesh having the strip breadth equal to half the grid constant was best.Filters with 25 mesh (ɡ = 1016 μ), 50 mesh (ɡ = 508 μ), 100 mesh (ɡ = 254 μ), 250 mesh (ɡ = 101.6 μ). 500 mesh (ɡ = 50.8 μ), 1000 mesh (ɡ = 25.4 μ) and 1500 mesh (ɡ = 16.9 μ) have been measured, keeping each strip breadth at the best condition, and narrow bandpass filters from i.r. to submillimeter have been constructed. Most of these filters have maximum transmittance around 70% and Q-value of about 4.These filters have some advantages over Reststrahlen filters and are useful for many spectroscopic studies. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
